Liberty Grinder Pumps LSGX204M Performance Curve
Liberty Grinder Pumps LSGX204M

Manual Omnivore X2 Grinder Pump, 25' cord, 2 HP, 440/480V, 3-Phase

Liberty Pumps

Brand: Liberty Pumps

Mfr Part#: LSGX204M

UPC#: 671812114935

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Liberty Pumps LSGX204M is a 2HP 440-460V 2-Stage High-head Manual Submersible Grinder Pump (3 Phase) with 25ft quick-disconnect power.

With twin stainless steel impellers driving flow to maximum heads of over 180 feet, the LSGX Grinder Pump can be installed in applications where traditional progressive cavity style pumps have been required. It has better cutting, more flow with the same pressure, greater reliability.


With proven V-Slice cutter technology, the Omnivore Grinder Pump LSGX204M macerates sanitary waste into a fine slurry allowing it to be pumped through small diameter pipe - eliminating costly gravity systems with larger pipe and deep trenching.

The LSGX-Series curve provides superior flows over a wide range of typical pressures - necessary for multi-unit developments and "large-area" low pressure sewer systems. The 2-stage Liberty Pumps LSGX204M allows installation of a centrifugal design where progressive cavity style pumps have traditionally been installed.


Liberty LSGX-Series Grinder Pumps are designed for continuous underwater operation. The motor and pump form a close coupled, watertight unit. The induction motor is insulated against heat and moisture in accordance with Class B 265F regulations.


The Omnivore Grinders may be guide rail mounted using Liberty's GR20 guide rail base, or stand-alone.

Liberty Pumps G90 Flanged Elbow provides vertical discharge for non-guide rail installations.


The Liberty LSGX204M Grinder Pump features internal capacitors and does not require a separate control panel for operation.

NOTE: These Liberty Grinder Pumps require a separate approved pump control device or panel for automatic operation. Operation of these pumps will be according to the control selected. Make sure the electrical specifications of the control selected properly match the electrical specifications of the pump. Always refer to control panel instructions for proper installation.

3-phase models require a properly sized control panel. Check three phase pumps for proper rotation prior to installing pump(s) in basin.


  • 2HP, heavy-duty motor - oil filled;
  • Omnivore LSGX-Series 2-stage;
  • Advanced V-Slice cutting system made of hardened 440 stainless steel - Rockwell C 58;
  • One-piece cast iron body;
  • Entire cutting system made of 440 stainless steel hardened to 58 Rc;
  • V-pattern provides up to 108 alternated cuts per revolution;
  • Horizontal 1-1/4" FNPT Discharge;
  • Superior pump design allows for efficient pumping over a wide range of head applications - even negative head;
  • Unsurpassed reliability reduces maintenance and homeowner inconvenience;
  • Internal capacitor;
  • Upper and lower ball bearings;
  • One-piece uni-body cast iron housing;
  • 300 Series SS Rotor Shaft;
  • 316 Stainless steel impeller;
  • Dual seals - Upper seal is unitized durable silicon carbide. Lower seal is Viton double-lip. (Lower seal ensures that all debris is kept away from main seal);
  • Motor windings insulated to Class B (265°F)
  • New Patented V-Slice cutter technology;
  • Back vanes on impeller and spiraled bottom plate for superior solids clearing;
  • All stainless steel fasteners;
  • Clog-free volute design;
  • Designed for maximum heat dissipation and cool motor operating temperatures;
  • Solid state starting circuit - no mechanical relay coil;
  • 25' power cord with Quick-Disconnect;

Technical Specifications:

  • Horsepower: 2HP;
  • Shut-off Head: 184';
  • Voltage: 440-460V;
  • Phase: 3;
  • Speed: 3450 RPM;
  • Motor service factor: 1.0;
  • Full load ampers: 5.3;
  • Locked rotor ampers: 31;
  • Starting circuit: N/A;
  • Maximum fluid temperature (Intermittent): 140°F;
  • Maximum fluid temperature (Continuous): 104°F;
  • Thermally Protected: No;
  • Stator winding class: B;
  • Cord length: 25';
  • Discharge: 1-1/4" NPT Flanged;
  • Weight: 90 lbs.;


3 years manufacturer's warranty
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